baber/WOPTO huggingface dataset:
Patent GB-1408814-A (GB)
Title: Control system for a hydrostartic transmission
IPC: F16H61/40
Filed: 1973-09-24
Abstract: 1408814 Fluid-pressure servomotor systems HYDROMATIK GmbH 24 Sept 1973 [27 Sept 1972] 44630/73 Heading G3P A pump 8 driven at a speed equal or proportional to the speed of an engine driving the pump 1 of a hydrostatic transmission and supplying leakage losses in the transmission through a line 17, 17' and an orifice 14 in a valve 10 adjusts the valve 10 and the pressure in a line 22 controlling a piston 3 to vary the displacement of the pump 1 when the output of the pump 8 changes. If the valve 10 is lifted to uncover a port 20 pressure is increased in the line 22 to displace the piston 3 against a spring-load while if the valve descends ports 21 and 25 are connected so that the line 22 is connected to a reservoir 24. Pressure in the line 22 is applied to a land 16 so that the valve 10 returns to the position shown after each adjustment of the piston 3. The direction of movement of the latter may be reversed by a valve 23.
Patent GB-1222028-A (GB)
Title: Transducer and potentiometric instrument equipped therewith
Inventor: CARPINO UGO
IPC: G01R5/16
Filed: 1968-09-19
Abstract: 1,222,028. Electric transformers; transducers. P. GUARDIGLI. 19 Sept., 1968 [19 Sept., 1967], No. 44685/68. Heading HIT. [Also in Division G1] A transducer comprises a core S of magnetic material with a primary winding B o  excited by an A.C. input. The core is interrupted and branched in one section to form four poles P 1 , P 2 , P 3  and P 4  having polepieces defining a cylindrical space and carrying four secondary windings B 1 , B 2 , B 3  and B 4  connected to deliver an A.C. output voltage Eu, the magnitude of which varies linearly with the angle of rotation of a rotor R of magnetic material, which rotatably oscillates in the cylindrical space, the said output being zero in a null position. An additional winding B 5  provides an A.C. output which may be used through a control circuit (Fig. 6, not shown) for compensating the effect of flux changes in the core as may be caused by either variations of input voltage or otherwise. ' The output Eu of the transducer unit may be rectified by means of a rectifier bridge (Fig. 4, not shown) to give a D.C. voltage which can be used as a reference for measuring an unknown D.C. voltage. The arrangement finds use in such applications as industrial recording potentiometric instruments.
Patent GB-1378583-A (GB)
Title: Production of plastics fioms
IPC: B29C48/10
Filed: 1972-09-28
Abstract: 1378583 Producing tubular films SCHWEIZERISCHE INDUSTRIE-GES 28 Sept 1972 [28 Sept 1971] 44931/72 Headings B5A and B5B Tubular plastics film is extruded through orifice 1, cooled on extrusion by cooling ring A, inflated by fluid supplied up tubular conduit 10 and collapsed by nip rollers R. The inflating fluid serves also as a coolant and, to this end, at-least a portion of it is directed against the wall of the tube at a point where it has achieved its greatest diameter. In the embodiment illustrated in Fig. 1, the fluid is passed from tubular conduit 10, through apertures 30 and 15 and extensible conduits 22 to nozzles 21, the outside edges of which are feraminous and let the fluid through. Nozzles 21 are movable between the operating position (indicated by pecked lines in Fig. 1), and a retracted position. This movement is effected by motor 24, rotating ring 16 and ring 17 and so moving levers 19 and 20 and orifice 21. This rotation of rings 16 and 17 draws them together along the screw threads 13 and 14, which are of equal pitch but opposite sence. The whole nozzle arrangement is rotated by means of chain drive 12 rotating tubular shaft 7 via gear 11. An alternative nozzle arrangement, illustrated in Fig. 3, consists of nozzles 41 connected to a central fluid supply 37 by telescopic tubes 36, 42. An increase in pressure extends the tubes against springs 43, and fluid escaping from vents 41b rotates the nozzles.
Patent GB-1277790-A (GB)
Title: Resin forming compositions containing maleimide and bismaleimide derivatives
Inventor: AKIYAMA KEIITI
IPC: C08G73/12
Filed: 1969-09-11
Abstract: 1277790 Maleimide copolymers YOKYO SHIBAURA ELECTRIC CO Ltd 11 Sept 1969 [27 Sept 1968 11 June 1969 30 July 1969] 44932/69 Heading C3P Heat resistant resins are prepared by copolymerizing in the presence of peroxide initiators mixtures comprising at least one maleimide compound and at least one bismaleimide compound of formulµ where R 1  is phenyl, methylphenyl, chlorophenyl, nitrophenyl or -(CH 2 CH 2 ) n CH 3  where n is 1 to 6; R 2  is H or alkyl; and R 3  is 4,4<SP>1</SP>- methylenediphenylene or 4,4<SP>1</SP>-oxydiphenylene; optionally together with (a) an unsaturated polyester resin of formulµ where R 4  is -CH=CH- or -C(CH 3 )=CH-, R 5  is 1,4-cyclohexylene or -(CH 2 CH 2 ) n - and R 6  is p-phenylene or -(CH 2 CH 2 ) n -where n is 1 to 6, or (b) an imide ester of formula where R 2  and R 3  are as defined above and R 7  is the radical of a dihydric alcohol or of n<SP>1</SP> moles of dihydric alcohol esterified with n<SP>1</SP> - 1 moles of dibasic acid. The components may be melted together to form moulding, casting and laminating compositions. Specified peroxides are dicumyl and dibenzyl peroxides, t-butyl perbenzoate and p-menthane peroxide. Many examples are given describing resins obtained by melting together two or more of N-phenyl-, N-3-chlorophenyl- and N-3-nitrophenyl maleimides, methylene-bis-(N-phenyl maleimide) and oxy-bis-(N-phenyl maleimide); optionally with polyesters derived from adipic acid, maleic anhydride and ethylene glycol or dimethyl terephthalate, maleic anhydride and ethylene glycol, or an imide ester derived from p,p<SP>1</SP>- eiaminodiphenylmethane, N-methyl-2-pyrrolidone, maleic anhydride and trimellitic anhydride; and curing in the presence of t-butyl perbenzoate, p-menthane hydroperoxide or dicumyl peroxide.
Patent GB-1002705-A (GB)
Title: Data transmitting system
IPC: H04L1/14
Filed: 1963-11-14
Abstract: 1,002,705. Telegraphy. SOC D'APPLICATIONS GENERALS, D'ELECTRICITE, ET DE MECANIQUE. Nov. 14, 1963 [Nov. 15, 1962], No. 45041/63. Heading H4P. In a system in which transmission can take place either from a telegraph unit (e.g. a keyboard) or a data unit (e.g. a perforated tape) and in which errors are corrected by repetition, the errors being detected by comparison of the transmitted signals with those returned from the receiver, the transmitter and the remote receiver each comprise a multistage store, the number of stages to be used being automatically determined by the total transmission time whenever transmission changes from the telegraph unit to the data unit. At the transmitter, Fig. 3, to initiate changeover to the data unit, the telegraph unit sends signal groups SSSS repeatedly. The receiver then changes to data reception and returns the groups to the transmitter. When the transmitter detects the returned groups at 13, it sends a long Stop signal which ceases when it receives back the leading edge of this signal, and is thus equal in duration to the propagation time. The data unit now starts and the data signals are both transmitted and fed successively to the first, second, &c., levels of the store 08 by electronic switch 082. The first transmitted signal is compared at 111 with the returned signals, and when the comparator shows equality switch 082 is stopped. All subsequent data signals are now fed to the store at this level, the store acting as a shift register. At the receiver, Fig. 4, unit 41 detects signals SSSS, whereupon the receiver changes to data reception and retransmission. During reception of the long Stop, electronic switch 382 steps, at character rate, from one level to the next. The particular level which has been reached when the Stop ceases is noted and switch 382 returns to the first level. Data characters are now received and are fed successively from the first level up to the particular level by switch 382. Subsequent characters are all fed in at this level, the characters displaced from the first level actuating a punch. Error detection causes an error-indicating long Stop to be transmitted. The receiver detects this at 40, and prevents store 38 from continuing to act as a shift register. Switch 382 returns to the first level. When the retransmitted errorindicating long Stop is received at the transmitter the data in the levels of store 08 is transmitted and re-stored. This process continues until comparator 111 shows equality. At the receiver the repeated characters are fed successively to the levels of store 38, over-riding any characters already stored there. Transmission time adjustment.-If the total transmission time is close to the duration of an integral number of characters a delay 16 is added so that minor variations in the transmission time will not result in faulty operation.
Patent GB-959152-A (GB)
Title: Sighting device for a rifle grenade
IPC: F41G1/48
Filed: 1962-12-03
Abstract: 959,152. Lighting devices for rifle grenades. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. Dec. 3, 1962 [Dec. 23, 1961], No. 45661/62. Headings F3A and F3C. A sighting device for a rifle grenade provided with a tail empennage 2, Fig. 1, comprises a support 1 adapted to be temporarily fixed to the empennage 2 by feet 3, Figs. 4, 5 (not shown), the support 1 having guides 4 in which a movable sight 5 is adapted to slide from a storage position, Fig. 1, to an aiming position, Fig. 3, the support being also provided with a clip 6 for holding a blank cartridge 7 for firing the grenade. On moving the sight to the aiming position, a stud 8 on the sight 5 pushes the cartridge 7 out of clip 6. A plug closing the tail of the grenade is held in position by the sight 5 when in storage position.
Patent GB-1375446-A (GB)
IPC: G01N27/333
Filed: 1972-10-04
Abstract: 1375446 Electro-chemical analysis GENERAL ELECTRIC CO 4 Oct 1972 [18 Oct 1971] 45669/72 Heading GIN 1N A membrane specific to potassium ions comprises a mixture of a hydrophobic elastomeric polymer with a di-electric constant of from 4 to 13 and a potassium ion specific carrier which is nonactin gramicidin, valinomycin or a mixture thereof. A solution of the carrier and polymer is cast on a glass plate in the form of a film from which a portion is punched out and sealed to the end of a glass tube containing an NaCl electrolyte and Ag/AgCl electrode. Examples of polymers are given and include polyurethanes, chloroprene polymers, vinylidene fluoride hexafluosopropylene polymers and organopolysiloxane polycarbonate block polymers. Examples of methods of production of which are described. The carrier may be added to the polymer in the form of its electrically neutral molecular species or in the form of a salt whose cation is the complex species formed between a potassium ion and the neutral carrier and whose anion is a hydrophobic lipophilic anion such as tetraphenyl borate. This increases the conductivity of the membrane.
Patent GB-1350113-A (GB)
Title: Sheet like information retaining devices
IPC: G06K19/067
Filed: 1971-10-04
Abstract: 1350113 Photo-electric position-finding BENDIX CORP 4 Oct 1971 [9 Oct 1970] 46020/71 Heading H4D [Also in Division G4] In digitizing apparatus a cursor 24j (Fig. 1) is movable over a flexible base of electrically insulative material having a rectangular grid consisting of an X axis element 14 (Fig. 2) and a Y axis element 16, the arrangement being such that as the cursor moves sinusoidal output pulses are derived, the cycles of the signal being counted to obtain a digital representation of the cursor position. In the embodiment of Fig. 1 the cursor includes a coil energized by an A.C. signal so that the sinusoidal signals are induced in the X and Y axis elements and fed to counters feeding a computer, magnetic tape recorder, XY plotter or printer. The X and Y axis elements are embedded in a sheet of for example thermoplastics material. In a second embodiment (Fig. 4, not shown) the X and Y elements are printed on different bases (46, 44) secured by adhesive to a top layer (48) with a writing surface (50). Instead of embedding the elements in the bases may be printed, e.g. by vacuum deposition, stencil screening or photo etching. If signal amplification is required two or more bases insulated from each other may be employed for each direction, the outputs for each direction being summed. Alternatively the X axis base may have an X axis element imprinted on each side of it, the Y axis base being similarly imprinted, the elements of each pair being exactly aligned. If however closer spacing of the grid line is required the parallel portions of each of the two sets of elements may be staggered (Fig. 5, not shown). In the embodiment of Fig. 6 (not shown) the elements are folded back along themselves. In the embodiment of Fig. 7 (not shown) the cursor is replaced by, for each of the X and Y axis elements, a metal detector (84) which radiates a high frequency electromagnetic field and detects the change produced when the metal elements are sensed, each cycle of the output from the detectors being counted. Alternatively the wires may be of magnetic material, the detector including for each direction a winding which responds to the magnetic field. Radioaetive material and radiation detectors may alternatively be used. In another embodiment luminous ink containing phosphor or glass beads energized by a source of radiation in a detector may be detected by a photo-sensor in the detector.
Patent GB-1528106-A (GB)
Title: Pipette aspirator device
IPC: B01L3/02
Filed: 1976-07-27
Abstract: 1528106 Pipette aspirator BECTON DICKINSON & CO 27 July 1976 [3 Nov 1975] 46187/77 Divided out of 1528105 Heading B1X The description is identical with that of Specification 1528105 but the claims relate to the pipette ejecting means.
Patent GB-1497448-A (GB)
Title: Magnetic tape cassettes
IPC: G11B23/087
Filed: 1975-11-07
Abstract: 1497448 Tape cassettes SONY CORP 7 Nov 1975 [20 Nov 1974] 46218/75 Heading B8M An idler roller 39 in an idler roller assembly 37 of a tape cassette 1 includes a hub 55 which is rotatably mounted on a pin or shaft 41 between walls 3, 5 of the cassette 1, the walls 3, 5 of the cassette 1 including tubular walls 43, 45 respectively which project into recesses 59, 61 defined by the hub 55 and radially outer tubular portion 49 which defines a tape engaging surface and an intermediate portion 63 of the roller 39 so that lubricant 69 which fills the space between the hub 55 and the shaft 41 is retained within the roller 39 and not splashed in use. The splasing is further curbed by providing felt pads 71, 73. The walls 43, 45 are preferably formed integrally with the wall portions 3, 5 and may be formed of a moulded synthetic resinous material.
Patent GB-1166503-A (GB)
Title: Improvements in or relating to Noise Dosimeters
IPC: G01H3/00
Filed: 1966-10-17
Abstract: 1,166,503. Noise exposure meter. SVENSK RADIO A.B. 17 Oct., 1966 [20 Oct., 1965], No. 46303/66. Heading H4D. A noise exposure meter comprises a registering device which is actuated, to provide a cumulative indication proportional to both sound intensity and duration, whenever a noise level exceeds a given selectable value. In an embodiment which can be carried on the person the output of a microphone is coupled through a variable gain amplifier and switching stage to the registering device, which may be a motordriven or stepping counter, a clockwork-driven tape or card recorder, a light-sensitive film, or a device employing electrolysis of a chemical. Amplifier circuit details are given.
Patent GB-1363609-A (GB)
Title: Hydraulic or pneumatic torque motor
IPC: F15B15/12
Filed: 1972-10-17
Abstract: 1363609 Rotary positive-displacement machines J A E NELIMARKKA 17 Oct 1972 [1 Nov 1971] 47766/72 Heading F1F In an hydraulic, or pneumatic, torque-motor a piston 5 fixed to an output shaft 3 engages with a seal 6 and can be displaced between screws 8, which to obviate leakage are furnished with caps 9 carrying sealing rings 10. Working-fluid supply and discharge openings A, B are disposed as shown. The seal 6 may be backed by a part 6a of differing hardness.
Patent GB-1484161-A (GB)
Title: Methods and devices for confirming correct connection between data terminals in system of data terminals linked by a telephone network
IPC: H04L9/32
Filed: 1974-11-06
Abstract: 1484161 Automatic exchange systems RICOH CO Ltd 6 Nov 1974 [7 Nov 1973] 47928/74 Heading H4K A path established via a telephone network between two data terminals is checked by transmitting the identity of the called terminal from one terminal to the other and comparing the received identity with the identity of the called terminal as stored at the other terminal. In a first embodiment the terminal which initiated the call transmits the identity of the called terminal to the called terminal after a connection has been established. The called terminal compares the received identity with its own identity and then transmits an acknowledge signal to the calling terminal. The acknowledge signal may be the called terminals identity, the calling terminal then comparing the identity received with the identity it transmitted. A second embodiment omits the first stage of the above procedure, i.e. the path check is initiated by the called terminal sending its own identity to the calling terminal for comparison with the identity transmitted by the calling terminal to set up the connection. In a further arrangement the calling terminal sends both its own identity and the called terminals identity, the calling terminals identity or both identities being transmitted back as the acknowledge signal. If any of the comparisons of addresses prove negative, the connection is broken down.
Patent GB-1075977-A (GB)
Title: A tamper-proof holder for an article
IPC: B65D25/24
Filed: 1965-11-12
Abstract: 1,075,977. Boxes etc.; container closures; tamperproof packages. J. E. L. CHUARD. Nov. 12, 1965 [Dec. 4, 1964], No. 48251/65. Headings B8C, B8P and B8T. A tamper-proof box or holder includes a securing plate (8), Fig. 4 (not shown), with two tongues (7) which are glued &c. fast into slots in the box &c. to retain the contents in position, the box being opened by breaking the tongues. In one form, the securing plate (8), Fig. 1 (not shown), is glued to the two ends of an opentopped plastics holder (1) of V-shaped crosssection, so as to hold and retain an object (C) in place. In another form, the two parts (9, 10), Fig. 6 (not shown), of a hexagonal crosssectioned box telescoped together are prevented from separating by gluing the tongues (12) of a securing plate (13) in a hole (11) in one box part (9) and a hole (11) in the other box part (10).
Patent GB-1264010-A (GB)
Title: Process for removing catalyst residues from polymers
IPC: C08C2/04
Filed: 1969-10-01
Abstract: 1,264,010. Removing catalyst residues from polymers. MITSUBISHI PETROCHEMICAL CO. Ltd. 1 Oct., 1969 [3 Oct., 1968], No. 48362/69. Heading C3P. Dissolved catalyst residues are removed from a polymer solution obtained by polymerizing monomer(s) in solution in a water-immiscible inert organic solvent in the presence of a polymerization catalyst soluble in said solvent, by a process comprising: (1) mixing the polymer solution with a substantially acid-free aqueous solution of a surface-active agent to form a first emulsion of water in polymer solution; (2) mixing said first emulsion with additional water to induce a phase inversion to give a second emulsion of the polymer solution in water; (3) allowing the second emulsion to separate into aqueous phase and organic phase; and (4) separating the aqueous phase from the organic phase. The polymer may be obtained by removal of the organic solvent from the organic phase. The examples relate to copolymers of ethylene and propylene or terpolymers of ethylene, propylene and dicyclopentadiene or 5-ethylidene-2-norbornene prepared by polymerization in hexane using ethylaluminium sesquichloride and VOCl 3  as catalyst, and the surface-active agents utilized in the catalyst removal process are a commercial polyoxyethylene alkyl phenol ether, polyoxyethylene lauryl ether, polyoxyethylene sorbitan monolaurate, and polyoxyethylene nonylphenyl ether.
Patent GB-484237-A (GB)
Abstract: 484,237. Circulating furnace atmospheres. METALECTRIC FURNACES, Ltd., and PETTIT, C. G. Jan. 21, 1937, No. 1776. [Class 51 (ii)] In an electric furnace for the heat treatment of metal articles of the kind in which the furnace atmosphere is circulated upwards over the heating-elements d. and downwards through a basket or container b for the articles by a twist blade fan e mounted beneath the basket support, the gas flow in the neighbourhood of the fan is directed by a concave conoidal protuberance g around the fan spindle, and the flared lower edge f<1> of a cylindrical flange f depending from the basket support.
Patent GB-1375447-A (GB)
IPC: B42F13/12
Filed: 1973-05-10
Abstract: 1375447 Releasable fastenings E S BOOCOCK 10 May 1973 48675/72 Heading E2A [Also in Division F2]  A paper fastener for holding together prepunched sheets or booklets comprises two tags or end pieces, each formed with a central loop or hole, linked together by a continuous band or closed loop of elastically extensible material which passes through the loops or holes in the tags or end pieces. The tags or end pieces may be of metal or plastics, and may be of bar form with a central loop, or a disc with a central hole counterbored or dished (Figs. D to F, not shown). The elastic band may be a single strand or several strands laid, twisted, or woven together, and may be continuous or joined by a knot or a crimped metal member, Fig. 1. Where a knot is used, it may be received in the counterbore or dished portion of an end piece of disc form.
Patent GB-1322609-A (GB)
Title: Production of beer
IPC: C12H1/14
Filed: 1971-10-20
Abstract: 1322609 Fermenting; ageing and finishing beer RAINIER COS Inc 20 Oct 1971 [20 Oct 1970] 48739/71 Divided out of 1322610 Heading C6E The subject-matter of this Specification is concerned with a process of making beer employing for the fermentation and ageing steps, and preferably the finishing also, the outdoor metal tank and ancillary equipment and claimed in Specification 1322610. Claim 1 reads: A process of making beer, comprising: subjecting a wort and yeast liquid feed mixture to fermentation at a controlled temperature cycle of 29 to 75‹F. in an enclosed tank having a bottom inner surface downwardly sloped to a low central area, supplying carbon dioxide gas from an external supply to a central area of the liquid above the tank bottom and bubbling the gas upwardly at a rate which effects upward central flow of colder liquid and thereby achieves cooling by induced convection, and downward peripheral flow of liquid along and about the tank walls to transport yeast to a settling zone on the bottom with minimal disturbance of yeast settling on the bottom, removing the yeast settled on the bottom of the tank through the low central area, during fermentation or either before, during or after cooling the beer for ageing, without removing it from the tank, ageing the cooled beer in the same tank while bubbling carbon dioxide gas upwardly through the beer, separating solids settled in the tank from the aged beer, and subjecting the aged beer to a finishing operation. Main fermentation conducted at a temperature of 40-75‹F. may be followed by after-fermentation at 29-50‹F. Foam formed during the fermentation may be removed before ageing and the space released filled with unaged beer from another batch fermentation. During ageing, carbon dioxide is injected into the beer from a position at least 20 feet below the surface.